def test_attributes_set(self):
# __name__, __loader__, and __package__ should be set (when
# is_package() is defined; undefined implicitly tested elsewhere).
class FakeLoader:
def __init__(self, is_package):
self._pkg = is_package
def is_package(self, name):
return self._pkg
@self.module_for_loader
def load_module(self, module):
return module
name = 'pkg.mod'
with util.uncache(name):
loader = FakeLoader(False)
module = loader.load_module(name)
self.assertEqual(module.__name__, name)
self.assertIs(module.__loader__, loader)
self.assertEqual(module.__package__, 'pkg')
name = 'pkg.sub'
with util.uncache(name):
loader = FakeLoader(True)
module = loader.load_module(name)
self.assertEqual(module.__name__, name)
self.assertIs(module.__loader__, loader)
self.assertEqual(module.__package__, name)
def test_attributes_set(self):
class FakeLoader:
def __init__(self, is_package):
self._pkg = is_package
def is_package(self, name):
return self._pkg
@self.module_for_loader
def load_module(self, module):
return module
name = 'pkg.mod'
with util.uncache(name):
loader = FakeLoader(False)
module = loader.load_module(name)
self.assertEqual(module.__name__, name)
self.assertIs(module.__loader__, loader)
self.assertEqual(module.__package__, 'pkg')
name = 'pkg.sub'
with util.uncache(name):
loader = FakeLoader(True)
module = loader.load_module(name)
self.assertEqual(module.__name__, name)
self.assertIs(module.__loader__, loader)
self.assertEqual(module.__package__, name)
def test_attributes_set(self):
# __name__, __loader__, and __package__ should be set (when
# is_package() is defined; undefined implicitly tested elsewhere).
class FakeLoader:
def __init__(self, is_package):
self._pkg = is_package
def is_package(self, name):
return self._pkg
@self.module_for_loader
def load_module(self, module):
return module
name = 'pkg.mod'
with util.uncache(name):
loader = FakeLoader(False)
module = loader.load_module(name)
self.assertEqual(module.__name__, name)
self.assertIs(module.__loader__, loader)
self.assertEqual(module.__package__, 'pkg')
name = 'pkg.sub'
with util.uncache(name):
loader = FakeLoader(True)
module = loader.load_module(name)
self.assertEqual(module.__name__, name)
self.assertIs(module.__loader__, loader)
self.assertEqual(module.__package__, name)
def test_new_module_failure(self):
# Test that a module is removed from sys.modules if added but an
# exception is raised.
name = 'a.b.c'
with util.uncache(name):
self.raise_exception(name)
self.assertNotIn(name, sys.modules)
def test_new_module_failure(self):
# Test that a module is removed from sys.modules if added but an
# exception is raised.
name = 'a.b.c'
with util.uncache(name):
self.raise_exception(name)
self.assertNotIn(name, sys.modules)
def test_reload(self):
'''Test that reload didn't re-set the module's attributes'''
with util.uncache(self.name):
module = self.load_module()
ex_class = module.Example
importlib.reload(module)
self.assertIs(ex_class, module.Example)
def test_reload(self):
'''Test that reload didn't re-set the module's attributes'''
with util.uncache(self.name):
module = self.load_module()
ex_class = module.Example
importlib.reload(module)
self.assertIs(ex_class, module.Example)
def test_reload_failure(self):
name = 'a.b.c'
module = types.ModuleType(name)
with util.uncache(name):
sys.modules[name] = module
self.raise_exception(name)
self.assertIs(module, sys.modules[name])
def test_new_module(self):
module_name = 'a.b.c'
with util.uncache(module_name):
module = self.return_module(module_name)
self.assertIn(module_name, sys.modules)
self.assertIsInstance(module, types.ModuleType)
self.assertEqual(module.__name__, module_name)
def test_reload_failure(self):
# Test that a failure on reload leaves the module in-place.
name = 'a.b.c'
module = types.ModuleType(name)
with util.uncache(name):
sys.modules[name] = module
self.raise_exception(name)
self.assertIs(module, sys.modules[name])
def test_sys_modules_spec_is_None(self):
name = 'some_mod'
with util.uncache(name):
module = types.ModuleType(name)
module.__spec__ = None
sys.modules[name] = module
with self.assertRaises(ValueError):
self.util.find_spec(name)
def test_reload_failure(self):
# Test that a failure on reload leaves the module in-place.
name = 'a.b.c'
module = types.ModuleType(name)
with util.uncache(name):
sys.modules[name] = module
self.raise_exception(name)
self.assertIs(module, sys.modules[name])
def test_sys_modules_spec_is_None(self):
name = 'some_mod'
with util.uncache(name):
module = types.ModuleType(name)
module.__spec__ = None
sys.modules[name] = module
with self.assertRaises(ValueError):
self.util.find_spec(name)
def test_sys_modules_loader_is_None(self):
name = 'some_mod'
with util.uncache(name):
module = types.ModuleType(name)
spec = self.machinery.ModuleSpec(name, None)
module.__spec__ = spec
sys.modules[name] = module
found = self.util.find_spec(name)
self.assertEqual(found, spec)
def test_package_settings(self):
# __package__ needs to be set, while __path__ is set on if the module
# is a package.
# Testing the values for a package are covered by test_load_module.
self.setUp(is_package=False)
with util.uncache(self.name):
module = self.loader.load_module(self.name)
self.verify_module(module)
self.assertTrue(not hasattr(module, '__path__'))
def test_load_module(self):
# Loading a module should set __name__, __loader__, __package__,
# __path__ (for packages), __file__, and __cached__.
# The module should also be put into sys.modules.
with util.uncache(self.name):
module = self.loader.load_module(self.name)
self.verify_module(module)
self.assertEqual(module.__path__, [os.path.dirname(self.path)])
self.assertIn(self.name, sys.modules)
def test_sys_modules_loader_is_None(self):
name = 'some_mod'
with util.uncache(name):
module = types.ModuleType(name)
spec = self.machinery.ModuleSpec(name, None)
module.__spec__ = spec
sys.modules[name] = module
found = self.util.find_spec(name)
self.assertEqual(found, spec)
def test_new_module(self):
# Test that when no module exists in sys.modules a new module is
# created.
module_name = 'a.b.c'
with util.uncache(module_name):
module = self.return_module(module_name)
self.assertIn(module_name, sys.modules)
self.assertIsInstance(module, types.ModuleType)
self.assertEqual(module.__name__, module_name)
def test_new_module(self):
# Test that when no module exists in sys.modules a new module is
# created.
module_name = 'a.b.c'
with util.uncache(module_name):
module = self.return_module(module_name)
self.assertIn(module_name, sys.modules)
self.assertIsInstance(module, types.ModuleType)
self.assertEqual(module.__name__, module_name)
def test_module(self):
with util.uncache(util.EXTENSIONS.name):
module = self.load_module(util.EXTENSIONS.name)
for attr, value in [('__name__', util.EXTENSIONS.name),
('__file__', util.EXTENSIONS.file_path),
('__package__', '')]:
self.assertEqual(getattr(module, attr), value)
self.assertIn(util.EXTENSIONS.name, sys.modules)
self.assertIsInstance(module.__loader__,
self.machinery.ExtensionFileLoader)
def test_module(self):
with util.uncache(util.EXTENSIONS.name):
module = self.load_module(util.EXTENSIONS.name)
for attr, value in [('__name__', util.EXTENSIONS.name),
('__file__', util.EXTENSIONS.file_path),
('__package__', '')]:
self.assertEqual(getattr(module, attr), value)
self.assertIn(util.EXTENSIONS.name, sys.modules)
self.assertIsInstance(module.__loader__,
self.machinery.ExtensionFileLoader)
def test_sys_modules_spec_is_not_set(self):
name = 'some_mod'
with util.uncache(name):
module = types.ModuleType(name)
try:
del module.__spec__
except AttributeError:
pass
sys.modules[name] = module
with self.assertRaises(ValueError):
self.util.find_spec(name)
def test_sys_modules_without___loader__(self):
name = 'some_mod'
with util.uncache(name):
module = types.ModuleType(name)
del module.__loader__
loader = 'a loader!'
spec = self.machinery.ModuleSpec(name, loader)
module.__spec__ = spec
sys.modules[name] = module
found = self.util.find_spec(name)
self.assertEqual(found, spec)
def test_sys_modules_without___loader__(self):
name = 'some_mod'
with util.uncache(name):
module = types.ModuleType(name)
del module.__loader__
loader = 'a loader!'
spec = self.machinery.ModuleSpec(name, loader)
module.__spec__ = spec
sys.modules[name] = module
found = self.util.find_spec(name)
self.assertEqual(found, spec)
def test_sys_modules_spec_is_not_set(self):
name = 'some_mod'
with util.uncache(name):
module = types.ModuleType(name)
try:
del module.__spec__
except AttributeError:
pass
sys.modules[name] = module
with self.assertRaises(ValueError):
self.util.find_spec(name)
def test_false_module(self):
# If for some odd reason a module is considered false, still return it
# from sys.modules.
class FalseModule(types.ModuleType):
def __bool__(self): return False
name = 'mod'
module = FalseModule(name)
with util.uncache(name):
self.assertFalse(module)
sys.modules[name] = module
given = self.return_module(name)
self.assertIs(given, module)
def test_module(self):
'''Test loading an extension module'''
with util.uncache(self.name):
module = self.load_module()
for attr, value in [('__name__', self.name),
('__file__', self.spec.origin),
('__package__', '')]:
self.assertEqual(getattr(module, attr), value)
with self.assertRaises(AttributeError):
module.__path__
self.assertIs(module, sys.modules[self.name])
self.assertIsInstance(module.__loader__,
self.machinery.ExtensionFileLoader)
def test_module(self):
'''Test loading an extension module'''
with util.uncache(self.name):
module = self.load_module()
for attr, value in [('__name__', self.name),
('__file__', self.spec.origin),
('__package__', '')]:
self.assertEqual(getattr(module, attr), value)
with self.assertRaises(AttributeError):
module.__path__
self.assertIs(module, sys.modules[self.name])
self.assertIsInstance(module.__loader__,
self.machinery.ExtensionFileLoader)
def test_false_module(self):
# If for some odd reason a module is considered false, still return it
# from sys.modules.
class FalseModule(types.ModuleType):
def __bool__(self): return False
name = 'mod'
module = FalseModule(name)
with util.uncache(name):
self.assertFalse(module)
sys.modules[name] = module
given = self.return_module(name)
self.assertIs(given, module)
def test_false_module(self):
class FalseModule(types.ModuleType):
def __bool__(self):
return False
name = 'mod'
module = FalseModule(name)
with util.uncache(name):
self.assertFalse(module)
sys.modules[name] = module
given = self.return_module(name)
self.assertIs(given, module)
def test_file_from_empty_string_dir(self):
# Loading a module found from an empty string entry on sys.path should
# not only work, but keep all attributes relative.
file_path = '_temp.py'
with open(file_path, 'w') as file:
file.write("# test file for importlib")
try:
with util.uncache('_temp'):
loader = machinery.SourceFileLoader('_temp', file_path)
mod = loader.load_module('_temp')
self.assertEqual(file_path, mod.__file__)
self.assertEqual(importlib.util.cache_from_source(file_path),
mod.__cached__)
finally:
os.unlink(file_path)
pycache = os.path.dirname(importlib.util.cache_from_source(file_path))
if os.path.exists(pycache):
shutil.rmtree(pycache)
def test_functionality(self):
'''Test basic functionality of stuff defined in an extension module'''
with util.uncache(self.name):
module = self.load_module()
self.assertIsInstance(module, types.ModuleType)
ex = module.Example()
self.assertEqual(ex.demo('abcd'), 'abcd')
self.assertEqual(ex.demo(), None)
with self.assertRaises(AttributeError):
ex.abc
ex.abc = 0
self.assertEqual(ex.abc, 0)
self.assertEqual(module.foo(9, 9), 18)
self.assertIsInstance(module.Str(), str)
self.assertEqual(module.Str(1) + '23', '123')
with self.assertRaises(module.error):
raise module.error()
self.assertEqual(module.int_const, 1969)
self.assertEqual(module.str_const, 'something different')
def test_file_from_empty_string_dir(self):
# Loading a module found from an empty string entry on sys.path should
# not only work, but keep all attributes relative.
file_path = '_temp.py'
with open(file_path, 'w') as file:
file.write("# test file for importlib")
try:
with util.uncache('_temp'):
loader = machinery.SourceFileLoader('_temp', file_path)
mod = loader.load_module('_temp')
self.assertEqual(file_path, mod.__file__)
self.assertEqual(importlib.util.cache_from_source(file_path),
mod.__cached__)
finally:
os.unlink(file_path)
pycache = os.path.dirname(
importlib.util.cache_from_source(file_path))
if os.path.exists(pycache):
shutil.rmtree(pycache)
def test_reload(self):
# Test that a module is reused if already in sys.modules.
class FakeLoader:
def is_package(self, name):
return True
@self.module_for_loader
def load_module(self, module):
return module
name = 'a.b.c'
module = types.ModuleType('a.b.c')
module.__loader__ = 42
module.__package__ = 42
with util.uncache(name):
sys.modules[name] = module
loader = FakeLoader()
returned_module = loader.load_module(name)
self.assertIs(returned_module, sys.modules[name])
self.assertEqual(module.__loader__, loader)
self.assertEqual(module.__package__, name)
def test_functionality(self):
'''Test basic functionality of stuff defined in an extension module'''
with util.uncache(self.name):
module = self.load_module()
self.assertIsInstance(module, types.ModuleType)
ex = module.Example()
self.assertEqual(ex.demo('abcd'), 'abcd')
self.assertEqual(ex.demo(), None)
with self.assertRaises(AttributeError):
ex.abc
ex.abc = 0
self.assertEqual(ex.abc, 0)
self.assertEqual(module.foo(9, 9), 18)
self.assertIsInstance(module.Str(), str)
self.assertEqual(module.Str(1) + '23', '123')
with self.assertRaises(module.error):
raise module.error()
self.assertEqual(module.int_const, 1969)
self.assertEqual(module.str_const, 'something different')
def test_reload(self):
# Test that a module is reused if already in sys.modules.
class FakeLoader:
def is_package(self, name):
return True
@self.module_for_loader
def load_module(self, module):
return module
name = 'a.b.c'
module = types.ModuleType('a.b.c')
module.__loader__ = 42
module.__package__ = 42
with util.uncache(name):
sys.modules[name] = module
loader = FakeLoader()
returned_module = loader.load_module(name)
self.assertIs(returned_module, sys.modules[name])
self.assertEqual(module.__loader__, loader)
self.assertEqual(module.__package__, name)
def test_module_reuse(self):
with util.uncache(util.EXTENSIONS.name):
module1 = self.load_module(util.EXTENSIONS.name)
module2 = self.load_module(util.EXTENSIONS.name)
self.assertIs(module1, module2)
def test_success(self):
name = 'some_mod'
with util.uncache(name):
with util.import_state(meta_path=[self.FakeMetaFinder]):
self.assertEqual((name, None, None),
self.util.find_spec(name))
def test_success(self):
name = 'some_mod'
with util.uncache(name):
with util.import_state(meta_path=[self.FakeMetaFinder]):
self.assertEqual((name, None, None),
self.util.find_spec(name))
def test_new_module_failure(self):
name = 'a.b.c'
with util.uncache(name):
self.raise_exception(name)
self.assertNotIn(name, sys.modules)
def test_module_reuse(self):
with util.uncache(util.EXTENSIONS.name):
module1 = self.load_module(util.EXTENSIONS.name)
module2 = self.load_module(util.EXTENSIONS.name)
self.assertIs(module1, module2)
